The O-Ring, cataloged under National Stock Number 5331-01-642-0937, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Abb Motors & Mechanical Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Abb Motors & Mechanical Inc (CAGE 54ZA4) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-642-0937 |
| Primary Part Number | 35500-184-FU |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Abb Motors & Mechanical Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 801639-525 ITEM NO. 70 | Abb Motors & Mechanical Inc (USA) |
| 35500-184-FU PRIMARY | Abb Motors & Mechanical Inc (USA) |
| Reference | Meaning |
|---|---|
| 801639-525 | D/9 Drawing number reference only Abb Motors & Mechanical Inc |
NSN 5331-01-642-0937 is a O-Ring, manufactured by Abb Motors & Mechanical Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-642-0937 has 2 manufacturer part numbers on file: 801639-525 ITEM NO. 70 (Abb Motors & Mechanical Inc), 35500-184-FU (Abb Motors & Mechanical Inc).
7 possible matches (shared part number, not a government interchangeability claim): 5331-01-642-0941, 5330-01-642-0978, 5330-01-642-1009. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.